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PixelToasterWindows.h
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PixelToasterWindows.h
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// Windows Platform
// Copyright © 2006-2007 Glenn Fiedler
// Part of the PixelToaster Framebuffer Library - http://www.pixeltoaster.com
#define VC_EXTRALEAN
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <windowsx.h>
#include <d3d9.h>
#ifndef __MINGW32__
#include <d3dx9.h>
#endif
#ifdef _MSC_VER
#pragma comment( lib, "d3d9.lib" )
#pragma comment( lib, "kernel32.lib" )
#pragma comment( lib, "gdi32.lib" )
#pragma comment( lib, "shell32.lib" )
#pragma comment( lib, "user32.lib" )
#endif
namespace PixelToaster
{
/// smart pointer for COM interfaces
template <typename I>
class SmartI
{
public:
SmartI(I* i = NULL): i_(i) {}
SmartI(SmartI& other): i_(other.i_) { if (i_) i_->AddRef(); }
~SmartI() { if (i_) i_->Release(); i_ = NULL; }
SmartI& operator=(SmartI& other) { SmartI temp(other); swap(temp); return *this; }
void reset(I* i = NULL) { SmartI temp(i); swap(temp); }
I* const get() const { return i_; }
I* const operator->() const { return get(); }
I** address() { return &i_; }
void swap(SmartI& other) { I* i = i_; i_ = other.i_; other.i_ = i; }
const bool operator!() const { return i_ == NULL; }
private:
I* i_;
};
// Windows Adapter interface
class WindowsAdapter
{
public:
virtual bool paint() = 0; // paint pixels to display
virtual bool fullscreen() = 0; // switch to fullscreen output
virtual bool windowed() = 0; // switch to windowed output
virtual void toggle() = 0; // toggle fullscreen/windowed output
virtual void exit() = 0; // user wants to exit (pressed escape or alt-f4 and there is no listener)
};
// Window implementation
class WindowsWindow
{
public:
WindowsWindow( DisplayInterface * display, WindowsAdapter * adapter, const char title[], int width, int height )
{
assert( display );
assert( adapter );
// save display
this->display = display; // note: required for listener callbacks
#ifdef UNICODE
// convert title to unicode
wchar_t unicodeTitle[1024];
MultiByteToWideChar( CP_ACP, 0, title, -1, unicodeTitle, sizeof(unicodeTitle) );
#endif
// setup data
this->adapter = adapter;
this->width = width;
this->height = height;
// defaults
window = NULL;
systemMenu = NULL;
active = false;
_listener = NULL;
centered = false;
zoomLevel = ZOOM_ORIGINAL;
mode = Windowed;
// get handle to system arrow cursor
arrowCursor = LoadCursor( NULL, IDC_ARROW );
// create null cursor so we can hide it reliably
integer32 cursorAnd = 0xFFFFFFFF;
integer32 cursorXor = 0;
nullCursor = CreateCursor( NULL, 0, 0, 1, 1, &cursorAnd, &cursorXor );
// clear mouse data
mouse.x = 0;
mouse.y = 0;
mouse.buttons.left = false;
mouse.buttons.middle = false;
mouse.buttons.right = false;
// setup keyboard data
for ( int i = 0; i < 256 ; ++i )
{
translate[i] = (Key::Code) i;
down[i] = false;
}
translate[219] = Key::OpenBracket;
translate[221] = Key::CloseBracket;
translate[220] = Key::BackSlash;
translate[13] = Key::Enter;
translate[187] = Key::Equals;
translate[189] = Key::Separator;
translate[186] = Key::SemiColon;
translate[191] = Key::Slash;
translate[190] = Key::Period;
translate[188] = Key::Comma;
translate[45] = Key::Insert;
translate[46] = Key::Delete;
// setup window class
HINSTANCE instance = GetModuleHandle(0);
WNDCLASSEX windowClass;
windowClass.cbSize = sizeof(WNDCLASSEX);
windowClass.style = 0;
windowClass.lpfnWndProc = &StaticWindowProc;
windowClass.cbClsExtra = 0;
windowClass.cbWndExtra = 0;
windowClass.hInstance = instance;
windowClass.hIcon = LoadIcon( instance, TEXT("DisplayIcon") );
windowClass.hCursor = NULL;
windowClass.hbrBackground = NULL;
windowClass.lpszMenuName = NULL;
windowClass.hIconSm = NULL;
#ifdef UNICODE
windowClass.lpszClassName = unicodeTitle;
#else
windowClass.lpszClassName = title;
#endif
#ifdef UNICODE
UnregisterClass( unicodeTitle, instance );
#else
UnregisterClass( title, instance );
#endif
if ( !RegisterClassEx( &windowClass ) )
return;
// create window
#ifdef UNICODE
window = CreateWindow( unicodeTitle, unicodeTitle, WS_OVERLAPPEDWINDOW, 0, 0, width, height, NULL, NULL, instance, NULL );
#else
window = CreateWindow( title, title, WS_OVERLAPPEDWINDOW, 0, 0, width, height, NULL, NULL, instance, NULL );
#endif
if ( !window )
return;
#ifdef _MSC_VER
#pragma warning( push )
#pragma warning( disable : 4244 ) // conversion from 'LONG_PTR' to 'LONG', possible loss of data (stupid win32 api! =p)
#endif
SetWindowLongPtr( window, GWLP_USERDATA, (LONG_PTR) this );
#ifdef _MSC_VER
#pragma warning( pop )
#endif
// setup system menu
updateSystemMenu();
}
~WindowsWindow()
{
DestroyWindow( window );
window = NULL;
DestroyCursor( nullCursor );
}
// show the window (it is initially hidden)
void show()
{
ShowWindow( window, SW_SHOW );
}
// hide the window
void hide()
{
ShowWindow( window, SW_HIDE );
}
// check if window is visible?
bool visible() const
{
return IsWindowVisible( window ) != 0;
}
// put window in fullscreen mode
void fullscreen(int width, int height)
{
// 1. hide window
// 2. hide mouse cursor
// 3. popup window style
// 4. move window to cover display entirely
// 5. show window
// 6. update system menu
this->width = width;
this->height = height;
hide();
SetCursor( nullCursor );
SetWindowLongPtr( window, GWL_STYLE, WS_POPUPWINDOW );
int w = GetSystemMetrics( SM_CXSCREEN );
int h = GetSystemMetrics( SM_CYSCREEN );
if ( width > w )
w = width;
if ( height > h )
h = height;
SetWindowPos( window, 0, 0, 0, w, h, SWP_NOZORDER );
show();
mode = Fullscreen;
updateSystemMenu();
}
// put window in windowed mode
void windowed( int width, int height )
{
// 1. hide window
// 2. overlapped window style
// 3. adjust window rect
// 4. center window
// 5. show mouse cursor
// 6. update system menu
this->width = width;
this->height = height;
hide();
SetWindowLongPtr( window, GWL_STYLE, WS_OVERLAPPEDWINDOW );
RECT rect;
GetWindowRect( window, &rect );
AdjustWindowRect( &rect, WS_OVERLAPPEDWINDOW, 0 );
SetWindowPos( window, 0, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top, SWP_NOZORDER );
center();
SetCursor( arrowCursor );
mode = Windowed;
updateSystemMenu();
}
// center the window on the desktop
// note: has no effect if the window is minimized or maximized
void center()
{
RECT rect;
GetWindowRect( window, &rect );
const int width = rect.right - rect.left;
const int height = rect.bottom - rect.top;
int x = ( GetSystemMetrics(SM_CXSCREEN) - width ) >> 1;
int y = ( GetSystemMetrics(SM_CYSCREEN) - height ) >> 1;
if ( x < 0 )
x = 0;
if ( y < 0 )
y = 0;
SetWindowPos( window, 0, x, y, width, height, SWP_NOZORDER );
centered = true;
updateSystemMenu();
}
// zoom window
void zoom( float scale )
{
// get current window rect and calculate current window center
RECT rect;
GetWindowRect( window, &rect );
const int cx = ( rect.left + rect.right ) / 2;
const int cy = ( rect.top + rect.bottom ) / 2;
// calculate window rect with origin (0,0)
rect.left = 0;
rect.top = 0;
rect.right = rect.left + (int) ( width * scale );
rect.bottom = rect.top + (int) ( height * scale );
// adjust window rect then make adjust origin back to (0,0)
AdjustWindowRect( &rect, WS_OVERLAPPEDWINDOW, 0 );
if ( rect.left < 0 )
{
rect.right -= rect.left;
rect.left = 0;
}
if ( rect.top < 0 )
{
rect.bottom -= rect.top;
rect.top = 0;
}
// center zoomed window around previous window center
const int dx = cx - ( rect.right - rect.left ) / 2;
const int dy = cy - ( rect.bottom - rect.top ) / 2;
rect.left += dx;
rect.right += dx;
rect.top += dy;
rect.bottom += dy;
// check that the newly centered window position is origin (0,0) or larger. no negative origin values allowed
if ( rect.left < 0 )
{
rect.right -= rect.left;
rect.left = 0;
}
if ( rect.top < 0 )
{
rect.bottom -= rect.top;
rect.top = 0;
}
// finally set the zoomed window position
SetWindowPos( window, 0, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top, SWP_NOZORDER );
// detect what zoom level we are at and update system menu
if ( scale == 1.0f )
zoomLevel = ZOOM_ORIGINAL;
else if ( scale == 2.0f )
zoomLevel = ZOOM_2X;
else if ( scale == 4.0f )
zoomLevel = ZOOM_4X;
else if ( scale == 8.0f )
zoomLevel = ZOOM_8X;
else
zoomLevel = ZOOM_RESIZED;
}
// window update pumps the message queue
void update()
{
// hide mouse cursor if fullscreen
if ( mode == Fullscreen && active )
SetCursor( nullCursor );
// check window
if ( !window )
return;
// message pump
MSG message;
bool done = false;
while ( !done )
{
if ( PeekMessage( &message, window, 0, 0, PM_REMOVE ) )
{
TranslateMessage( &message );
DispatchMessage( &message );
}
else
{
done = true;
}
Sleep(0);
}
}
// get the window handle.
// null if the window failed to initialize.
HWND handle() const
{
return window;
}
// title management
void title( const char title[] )
{
if ( !window )
return;
#ifdef UNICODE
wchar_t unicodeTitle[1024];
MultiByteToWideChar( CP_ACP, 0, title, -1, unicodeTitle, sizeof(unicodeTitle) );
SetWindowText( window, unicodeTitle );
#else
SetWindowText( window, title );
#endif
}
// listener management
void listener( Listener * listener )
{
_listener = listener;
}
Listener * listener()
{
return _listener;
}
protected:
static LRESULT CALLBACK StaticWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
LONG_PTR extra = GetWindowLongPtr( hWnd, GWLP_USERDATA );
if (!extra)
return DefWindowProc( hWnd, uMsg, wParam, lParam );
WindowsWindow * window = (WindowsWindow*) extra;
return window->WindowProc( hWnd, uMsg, wParam, lParam );
}
LRESULT CALLBACK WindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
switch ( uMsg )
{
case WM_ACTIVATE:
active = wParam != WA_INACTIVE;
if ( _listener )
_listener->onActivate( display->wrapper() ? *display->wrapper() : *display, active );
break;
case WM_PAINT:
adapter->paint();
break;
case WM_SIZING:
adapter->paint();
zoomLevel = ZOOM_RESIZED;
case WM_SIZE:
updateSystemMenu();
break;
case WM_CLOSE:
if ( _listener )
{
if ( _listener->onClose( display->wrapper() ? *display->wrapper() : *display ) )
adapter->exit();
}
else
adapter->exit();
return 0;
case WM_SETCURSOR:
if ( LOWORD( lParam ) == HTCLIENT )
{
if ( mode == Fullscreen )
SetCursor( nullCursor );
else
SetCursor( arrowCursor );
}
else
return DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
case WM_SYSCOMMAND:
{
switch ( wParam )
{
case MENU_CENTER:
center();
updateSystemMenu();
break;
case MENU_ZOOM_ORIGINAL:
zoom( 1.0f );
updateSystemMenu();
break;
case MENU_ZOOM_2X:
zoom( 2.0f );
updateSystemMenu();
break;
case MENU_ZOOM_4X:
zoom( 4.0f );
updateSystemMenu();
break;
case MENU_ZOOM_8X:
zoom( 8.0f );
updateSystemMenu();
break;
case MENU_WINDOWED:
adapter->windowed();
break;
case MENU_FULLSCREEN:
adapter->fullscreen();
break;
default:
return DefWindowProc( hWnd, uMsg, wParam, lParam );
}
}
break;
case WM_MOVING:
{
if ( centered )
{
centered = false;
updateSystemMenu();
}
}
break;
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
{
unsigned char key = (unsigned char)wParam;
if ( key==VK_RETURN && GetAsyncKeyState( VK_MENU ) )
{
adapter->toggle(); // note: toggle fullscreen and windowed output
break;
}
if ( !down[key] )
{
bool defaultKeyHandlers = true;
if ( _listener )
{
_listener->onKeyDown( display->wrapper() ? *display->wrapper() : *display, (Key::Code)translate[key] );
defaultKeyHandlers = _listener->defaultKeyHandlers();
}
if ( defaultKeyHandlers )
{
if ( key == 27 )
adapter->exit(); // quit on escape by default, return false in listener to disable this
}
down[key] = true;
}
if ( _listener )
_listener->onKeyPressed( display->wrapper() ? *display->wrapper() : *display, (Key::Code)translate[key] );
}
break;
case WM_KEYUP:
case WM_SYSKEYUP:
{
unsigned char key = (unsigned char)wParam;
if ( _listener )
_listener->onKeyUp( display->wrapper() ? *display->wrapper() : *display, (Key::Code)translate[key] );
down[key] = false;
}
break;
case WM_LBUTTONDOWN:
{
if ( !( mouse.buttons.left | mouse.buttons.right | mouse.buttons.middle ) )
SetCapture( hWnd );
RECT rect;
GetClientRect( window, &rect );
const float widthRatio = (float) width / ( rect.right - rect.left );
const float heightRatio = (float) height / ( rect.bottom - rect.top );
mouse.x = (float) GET_X_LPARAM( lParam ) * widthRatio;
mouse.y = (float) GET_Y_LPARAM( lParam ) * heightRatio;
mouse.buttons.left = true;
if ( _listener )
_listener->onMouseButtonDown( display->wrapper() ? *display->wrapper() : *display, mouse );
}
break;
case WM_MBUTTONDOWN:
{
if ( !( mouse.buttons.left | mouse.buttons.right | mouse.buttons.middle ) )
SetCapture( hWnd );
RECT rect;
GetClientRect( window, &rect );
const float widthRatio = (float) width / ( rect.right - rect.left );
const float heightRatio = (float) height / ( rect.bottom - rect.top );
mouse.x = (float) GET_X_LPARAM( lParam ) * widthRatio;
mouse.y = (float) GET_Y_LPARAM( lParam ) * heightRatio;
mouse.buttons.middle = true;
if ( _listener )
_listener->onMouseButtonDown( display->wrapper() ? *display->wrapper() : *display, mouse );
}
break;
case WM_RBUTTONDOWN:
{
if ( !( mouse.buttons.left | mouse.buttons.right | mouse.buttons.middle ) )
SetCapture( hWnd );
RECT rect;
GetClientRect( window, &rect );
const float widthRatio = (float) width / ( rect.right - rect.left );
const float heightRatio = (float) height / ( rect.bottom - rect.top );
mouse.x = (float) GET_X_LPARAM( lParam ) * widthRatio;
mouse.y = (float) GET_Y_LPARAM( lParam ) * heightRatio;
mouse.buttons.right = true;
if ( _listener )
_listener->onMouseButtonDown( display->wrapper() ? *display->wrapper() : *display, mouse );
}
break;
case WM_LBUTTONUP:
{
RECT rect;
GetClientRect( window, &rect );
const float widthRatio = (float) width / ( rect.right - rect.left );
const float heightRatio = (float) height / ( rect.bottom - rect.top );
mouse.x = (float) GET_X_LPARAM( lParam ) * widthRatio;
mouse.y = (float) GET_Y_LPARAM( lParam ) * heightRatio;
mouse.buttons.left = false;
if ( _listener )
_listener->onMouseButtonUp( display->wrapper() ? *display->wrapper() : *display, mouse );
if ( !( mouse.buttons.left | mouse.buttons.right | mouse.buttons.middle ) )
ReleaseCapture();
}
break;
case WM_MBUTTONUP:
{
RECT rect;
GetClientRect( window, &rect );
const float widthRatio = (float) width / ( rect.right - rect.left );
const float heightRatio = (float) height / ( rect.bottom - rect.top );
mouse.x = (float) GET_X_LPARAM( lParam ) * widthRatio;
mouse.y = (float) GET_Y_LPARAM( lParam ) * heightRatio;
mouse.buttons.middle = false;
if ( _listener )
_listener->onMouseButtonUp( display->wrapper() ? *display->wrapper() : *display, mouse );
if ( !( mouse.buttons.left | mouse.buttons.right | mouse.buttons.middle ) )
ReleaseCapture();
}
break;
case WM_RBUTTONUP:
{
RECT rect;
GetClientRect( window, &rect );
const float widthRatio = (float) width / ( rect.right - rect.left );
const float heightRatio = (float) height / ( rect.bottom - rect.top );
mouse.x = (float) GET_X_LPARAM( lParam ) * widthRatio;
mouse.y = (float) GET_Y_LPARAM( lParam ) * heightRatio;
mouse.buttons.right = false;
if ( _listener )
_listener->onMouseButtonUp( display->wrapper() ? *display->wrapper() : *display, mouse );
if ( !( mouse.buttons.left | mouse.buttons.right | mouse.buttons.middle ) )
ReleaseCapture();
}
break;
case WM_MOUSEMOVE:
{
RECT rect;
GetClientRect( window, &rect );
const float widthRatio = (float) width / ( rect.right - rect.left );
const float heightRatio = (float) height / ( rect.bottom - rect.top );
mouse.x = (float) GET_X_LPARAM( lParam ) * widthRatio;
mouse.y = (float) GET_Y_LPARAM( lParam ) * heightRatio;
if ( _listener )
_listener->onMouseMove( display->wrapper() ? *display->wrapper() : *display, mouse );
}
break;
default: break;
}
return DefWindowProc( hWnd, uMsg, wParam, lParam );
}
// system menu item ids
enum SystemMenuItems
{
MENU_SEPARATOR_A = 1,
MENU_ZOOM_ORIGINAL,
MENU_ZOOM_2X,
MENU_ZOOM_4X,
MENU_ZOOM_8X,
MENU_SEPARATOR_B,
MENU_WINDOWED,
MENU_FULLSCREEN,
MENU_SEPARATOR_C,
MENU_CENTER
};
// current zoom level for window
enum ZoomLevel
{
ZOOM_RESIZED,
ZOOM_ORIGINAL,
ZOOM_2X,
ZOOM_4X,
ZOOM_8X
};
// update addition system menu items
void updateSystemMenu()
{
systemMenu = GetSystemMenu( window, FALSE );
// remove additional items
RemoveMenu( systemMenu, MENU_SEPARATOR_A, MF_BYCOMMAND );
RemoveMenu( systemMenu, MENU_ZOOM_ORIGINAL, MF_BYCOMMAND );
RemoveMenu( systemMenu, MENU_ZOOM_2X, MF_BYCOMMAND );
RemoveMenu( systemMenu, MENU_ZOOM_4X, MF_BYCOMMAND );
RemoveMenu( systemMenu, MENU_ZOOM_8X, MF_BYCOMMAND );
RemoveMenu( systemMenu, MENU_SEPARATOR_B, MF_BYCOMMAND );
RemoveMenu( systemMenu, MENU_FULLSCREEN, MF_BYCOMMAND );
RemoveMenu( systemMenu, MENU_WINDOWED, MF_BYCOMMAND );
RemoveMenu( systemMenu, MENU_SEPARATOR_C, MF_BYCOMMAND );
RemoveMenu( systemMenu, MENU_CENTER, MF_BYCOMMAND );
// rebuild menu
bool windowed = mode == Windowed;
if ( windowed && !IsIconic(window) && !IsMaximized(window) )
{
AppendMenu( systemMenu, MF_SEPARATOR, MENU_SEPARATOR_A, TEXT("") );
AppendMenu( systemMenu, MF_STRING, MENU_ZOOM_ORIGINAL, TEXT("Original Size") );
const int desktopWidth = GetSystemMetrics( SM_CXSCREEN );
const int desktopHeight = GetSystemMetrics( SM_CYSCREEN );
if ( width*2 < desktopWidth && height*2 < desktopHeight )
AppendMenu( systemMenu, MF_STRING, MENU_ZOOM_2X, TEXT("2x Zoom") );
if ( width*4 < desktopWidth && height*4 < desktopHeight )
AppendMenu( systemMenu, MF_STRING, MENU_ZOOM_4X, TEXT("4x Zoom") );
if ( width*8 < desktopWidth && height*8 < desktopHeight )
AppendMenu( systemMenu, MF_STRING, MENU_ZOOM_8X, TEXT("8x Zoom") );
}
AppendMenu( systemMenu, MF_SEPARATOR, MENU_SEPARATOR_B, TEXT("") );
if ( !windowed )
AppendMenu( systemMenu, MF_STRING, MENU_WINDOWED, TEXT("Windowed") );
else
AppendMenu( systemMenu, MF_STRING, MENU_FULLSCREEN, TEXT("Fullscreen") );
if ( !centered && windowed )
{
AppendMenu( systemMenu, MF_SEPARATOR, MENU_SEPARATOR_C, TEXT("") );
AppendMenu( systemMenu, MF_STRING, MENU_CENTER, TEXT("Center") );
}
}
private:
HWND window; // window handle
HMENU systemMenu; // system menu handle
int width; // natural window width
int height; // natural window height
bool active; // true if window is currently active
enum Mode
{
Fullscreen,
Windowed
};
Mode mode; // current window mode (fullscreen or windowed)
Mouse mouse; // current mouse input data
Key translate[256]; // key translation table (win32 scancode -> Key::Code)
bool down[256]; // key down table (true means key is down)
HCURSOR arrowCursor; // handle to system arrow cursor (does not need to be freed)
HCURSOR nullCursor; // null cursor when we dont want to see it
bool centered; // true if window is centered
ZoomLevel zoomLevel; // current zoom level
WindowsAdapter * adapter; // the adapter interface (must not be null)
DisplayInterface * display; // required for listener callbacks (may be null)
Listener * _listener; // the listener interface (may be null)
};
// ********************* Windows Device (DirectX 9.0) ***************************
class WindowsDevice
{
public:
WindowsDevice( LPDIRECT3D9 direct3d, HWND window, int width, int height, Mode mode, bool windowed )
{
assert( direct3d );
assert( window );
this->direct3d = direct3d;
this->window = window;
// store parameters
this->width = width;
this->height = height;
this->window = window;
this->mode = mode;
this->windowed = windowed;
// defaults
drawAsQuad = false;
scalesUp = false;
// setup
createDeviceAndSurface();
}
/// destructor
~WindowsDevice()
{
}
/// check if device is valid
/// @returns true if the device is valid
bool valid() const
{
if ( !device && !primaryTexture )
return false;
return !FAILED( device->TestCooperativeLevel() ); // not valid if device is lost
}
/// update the device pixels.
/// @returns true if the update succeeded, false otherwise.
bool update( const TrueColorPixel * trueColorPixels, const FloatingPointPixel * floatingPointPixels, const Rectangle * dirtyBox )
{
// handle device loss
HRESULT result = device->TestCooperativeLevel();
if ( FAILED( result ) )
{
if ( result == D3DERR_DEVICENOTRESET )
device->Reset( &presentation );
}
if ( !valid() )
return false;
// copy pixels to surface
if ( !primaryTexture )
return false;
RECT rect, *pRect = 0;
if (dirtyBox)
{
rect.left = dirtyBox->xBegin;
rect.right = dirtyBox->xEnd;
rect.top = dirtyBox->yBegin;
rect.bottom = dirtyBox->yEnd;
pRect = ▭
}
D3DLOCKED_RECT lock;
if ( FAILED( primaryTexture->LockRect( 0, &lock, pRect, D3DLOCK_NOSYSLOCK ) ) )
return false;
unsigned char * dest = static_cast<unsigned char*>(lock.pBits);
const int bytesPerDestLine = lock.Pitch;
Converter * converter = 0;
const unsigned char * source = 0;
int bytesPerSourcePixel = 0;
if ( floatingPointPixels )
{
converter = requestConverter( Format::XBGRFFFF, textureFormat );
source = reinterpret_cast<const unsigned char*>(floatingPointPixels);
bytesPerSourcePixel = sizeof(FloatingPointPixel);
}
else
{
converter = requestConverter( Format::XRGB8888, textureFormat );
source = reinterpret_cast<const unsigned char*>(trueColorPixels);
bytesPerSourcePixel = sizeof(TrueColorPixel);
}
const int bytesPerSourceLine = width * bytesPerSourcePixel;
if ( converter )
{
converter->begin();
const Rectangle box = dirtyBox ? *dirtyBox : Rectangle(0, width, 0, height);
const int boxWidth = box.xEnd - box.xBegin;
source += (box.yBegin * width + box.xBegin) * bytesPerSourcePixel;
for ( int y = box.yBegin; y < box.yEnd; ++y )
{
converter->convert( source, dest, boxWidth );
source += bytesPerSourceLine;
dest += bytesPerDestLine;
}
converter->end();
}
primaryTexture->UnlockRect( 0 );
// paint display
return paint();
}
/// paint pixels to device
/// @returns true if paint succeeded, false if it failed.
bool paint()
{
// check if valid
if ( !valid() )
return false;
// copy surface to back buffer
if ( drawAsQuad )